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Уважаемые коллеги!<br>
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На заседании Ученого совета в пятницу 25 февраля в 11:30 будет
заслушан доклад:<br>
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<u>А.В. Лункин</u>, М.В. Фейгельман<br>
<font size="4"><b>High-frequency transport and zero-sound in an
array of SYK quantum dots</b><b><br>
</b></font><br>
We study an array of strongly correlated quantum dots of complex SYK
type and account for the effects of quadratic terms added to the SYK
Hamiltonian; both local terms and inter-dot tunneling are considered
in the non-Fermi-liquid temperature range T≫TFL. Electric σ(ω,p) and
thermal κ(ω,p) conductivities are calculated as functions of
frequency and momentum, for arbitrary values of the particle-hole
asymmetry parameter E. At low-frequencies ω≪T we find the Lorentz
ratio L=κ(0,0)/σ(0,0) to be non-universal and temperature-dependent.
At ω≫T the conductivity σ(ω,p) contains a pole with nearly linear
dispersion ω≈splnωT reminiscent of the "zero-sound", known for
Fermi-liquids. <br>
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ID и пароль онлайн-трансляции в Zoom те же, что и для предыдущих
трансляций докладов на Ученом совете:<br>
<div class="moz-cite-prefix"> <a class="moz-txt-link-freetext"
href="https://zoom.us/j/96899364518?pwd=MzBsR2lYT0lYL2x2b1oyNU9LeWlWUT09">https://zoom.us/j/96899364518?pwd=MzBsR2lYT0lYL2x2b1oyNU9LeWlWUT09</a><br>
Meeting ID: 968 9936 4518<br>
Пароль: 250319 </div>
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